CEUSTACEA OF FEAKZ-JOSEF LAND. 113 



obtained in the Franz-Josef Land collections ; they could usually 

 be distinguished, at sight by the characteristic pale purple bauds 

 across the dorsal aspect. They occurred in three gatherings 

 collected off West Point, Cape Elora, about 50 yards, in 2-4 

 fathoms : (1) on June 4th, (2) June 22nd, and (3) July 5th, 

 1897. Some specimens were also obtained in a gathering 

 dredged at West Bay, in 2-10 fathoms, July 2nd of the same 

 year. As a British species, Idya furcata is moderately common. 



Idta minoe, T. 6f A. Scott. 



1896. Idya minor, T. & A. Scott (84), p. 228, pi. 4. figs. 11-17. 



This is a distinctly smaller species than I. furcata, and appears 

 to be a scarce form. The only gathering in which a few speci- 

 mens were obtained was dredged in 2-3 fathoms, about fifty 

 yards off West Point, Cape Plora, on June 18th, 1897. 



Genus Scftellidium, Glaus, 1866. 



Scutelliditim: tisboides, Olaus. 



1866. Scutellidium tisboides, Olaus (24), p. 21, pi. 4. figs. 8-15. 



Several specimens of this species occurred in the same gather- 

 ing with Idya minor, but in no other. It is a moderately large 

 and easily recognized species. It is widely distributed, but 

 apparently not very common. It is one of the rarer of the 

 British species. 



Pamily Ascomtzonttd/e. 



Genus Deematomyzon, Glaus, 1889. 



Deematomtzon JsriGEiPEs {Brady Sf Bohertson). 



1875. Cyclopicera nigripes, Brady & Robertson (45), p. 197. 



Thi.s species was very rare in the Pranz- Josef Land collections. 

 The only gathering in which it was observed was one collected 

 off East Glacier, Cape Plora, and which contained several other 

 interesting species, such as Munna Fabricii and Pleurogonium. 

 The British distribution of Dermatomyzon iiigripes extends to 

 the Shetland Islands. Dr. Giesbrecht refers doubtfully to the 

 occurrence at Spitzbergen of this species. 



